Question
A businessman purchases 20 articles whose cost is equal
to the selling price of 15 articles. The profit or loss percentage of the businessman is:Solution
CP × 20 = SP × 15 ⇒ 20/15 = SP/CP Here, CP < SP Profit = 20 - 15 = 5 Profit percent = (5/15) × 100 = 33.33%
The sum of the exponents of the prime factors in the prime factorization of 540 is
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